UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z6LfXwBhLX4xqCp7XE1otM2BUa/ZssWGvSlOlSo3XXk=' 
WHERE 
  key_id = '6799e3fe2ee76691dc0d4dce7febe50fe9d963117012202e280ff85f7de9a1ad' 
  AND (
    token = 'z6LfXwBhLX4xqCp7XE1otM2BUa/ZssWGvSlOlSo3XXk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )